Agent skill · writing content · secondsky
nano-banana-prompts
Generate optimized prompts for Gemini 2.5 Flash Image (Nano Banana). Use for image generation, crafting photo prompts, art styles, or multi-turn editing workflows with best practices.
Why this skill is useful
Provides structured templates and best practices for generating optimized prompts specific to Gemini 2.5 Flash Image that the AI wouldn't reliably generate on its own.
What it needs
About 8k tokens when loaded. Last updated 2026-08-06. 204 stars on the source repository.
What this skill does
Nano Banana Image Prompt Generator Generate high-quality prompts for Gemini 2.5 Flash Image using proven best practices from October 2025. Core Principle Describe scenes naturally, don't list keywords. ❌ woman, business suit, office, professional ✅ A professional businesswoman in navy suit stands confidently in modern glass-walled office overlooking city skyline. Warm afternoon light streams through windows. Prompt Structure Basic Template Components 1. Subject & Action - Who/what and what they're doing 2. Setting - Where the scene takes place 3. Lighting - Natural/artificial light sources and quality 4. Mood - Emotional tone or atmosphere 5. Technical Details - Camera, lens, style specifics 6. Format - Aspect ratio or dimensions Prompt Length Short (10-20 words): Quick generation, minimal control Medium (50-100 words): ⭐ RECOMMENDED - balanced control Long (100-200 words): Maximum control for complex scenes Photography Prompts Template Camera Control Lenses: 35mm, 50mm (standard) 85mm portrait (close-ups) 10-24mm wide (landscapes) 60-105mm macro (details) Lighting: Golden hour (warm, soft) Blue hour (cool, atmospheric) Three-point (studio) Dramatic side (high contrast) Rembrandt (classic portrait) Settings: Shallow DOF: f/1.4-2.8 (blurred background) Deep focus: f/11-22 (everything sharp) Motion blur for action Example Art & Illustration Prompts Template Common Styles Watercolor painting Digital art Oil painting Pencil sketch Ink drawing Anime/manga Pixel art Minimalist vector Example Text Rendering Best Practices: Keep under 25 characters total Maximum 2-3 phrases Specify font style (bold, script, sans-serif) Put exact text in quotes Describe position explicitly Example: Multi-Turn Editing Workflow Nano Banana excels at conversational editing. Make one change at a time. Example sequence: 1. "Create professional headshot of woman in business attire" 2. "Change background to modern office" 3. "Make her wearing glasses" 4. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills secondsky/nano-banana-prompts